1008 
Index. 
Gravel at Musselburgh, by Prof. J 
Geikie, 745. 
“Triton.” — Work done on Board of 
H.M.S. “Triton” in the Faroe 
Channel during the Summer of 1882, 
231, 707. 
Tunicata. —Homology of the _ Neural 
Gland in the Tunicata with the 
Hypophysis Cerebri, 145. 
Abstract of Report on the 
“ Porcupine ” Tunicata, by Prof. 
W. A. Herdman, 412. 
dredged in the Faroe Channel 
during the Cruise of the “Triton,” 
by Prof. W. A. Herdman, 231. 
Turner (Prof. William), on the so- 
called Bicipital Ribs, 127. 
Urticaceee of Socotra, 95. 
Verbenacese of Socotra, 90. 
Yertebrate Morphology, latest Theory 
of, by J. T. Cunningham, B.A., 759. 
Yiolarieas of Socotra, 402. 
Vis acceleratrix, vis impressa, vis insita 
{see Force). 
Yision. — On Distant Yision, by E. E. 
Maddox, M.B., 433. 
Yital Statistics (Scottish),, by George 
Seton, advocate, 619. 
Yolcanic Ashes and Cosmic Dust, 
their Microscopic Characters, by 
John Murray and M. T Abbe Renard, 
474, 509. 
Yortex Motion, by Prof. Tait, 562. 
Water — Its Compressibilitj^, by Prof. I 
Tait, 45, 757. ' 
Effect of Pressure on its Maxi- ,, 
mum Density Point, 192, 226. [ 
W eather. —The Moon and the W eather, I 
by John Aitken, 187. f 
AYind. — Diurnal Yariatif the 
Force of, by Alexanaer ichan, 
M.A., 47. 
— On an Influx of Warm Wind 
on the night of 28th Januarj; 1883, 
by Prof. Piazzi Smyth, Astrcnomer 
Royal, 75. 
Zygophylleae of Socotra, 403. 
NEILL AND COMPANY, EDINBURGH, 
GOVERNMENT BOOK AND LAW PRINTERS FOR SCOTLAND. 
